1 files changed, 3 insertions, 2 deletions
diff --git a/JavaScriptCore/runtime/ErrorInstance.cpp b/JavaScriptCore/runtime/ErrorInstance.cpp
index be6d0fb..740e20e 100644
--- a/JavaScriptCore/runtime/ErrorInstance.cpp
+++ b/JavaScriptCore/runtime/ErrorInstance.cpp
@@ -25,9 +25,10 @@ namespace JSC {
 
 const ClassInfo ErrorInstance::info = { "Error", 0, 0, 0 };
 
-ErrorInstance::ErrorInstance(NonNullPassRefPtr<Structure> structure)
+ErrorInstance::ErrorInstance(JSGlobalData* globalData, NonNullPassRefPtr<Structure> structure)
     : JSObject(structure)
 {
+    putDirect(globalData->propertyNames->message, jsString(globalData, ""));
 }
 
 ErrorInstance::ErrorInstance(JSGlobalData* globalData, NonNullPassRefPtr<Structure> structure, const UString& message)
@@ -44,7 +45,7 @@ ErrorInstance* ErrorInstance::create(JSGlobalData* globalData, NonNullPassRefPtr
 ErrorInstance* ErrorInstance::create(ExecState* exec, NonNullPassRefPtr<Structure> structure, JSValue message)
 {
     if (message.isUndefined())
-        return new (exec) ErrorInstance(structure);
+        return new (exec) ErrorInstance(&exec->globalData(), structure);
     return new (exec) ErrorInstance(&exec->globalData(), structure, message.toString(exec));
 }